Development of a picosecond Nd:YLF amplifier for laser-Compton x-ray generator

Yasuhiro Okada; Masafumi Yorozu; Jinfeng Yang; Katsuyuki Kobayashi; Fumio Sakai; Yasushi Aoki; Akira Endo

doi:10.1117/12.424608

16 April 2001 Development of a picosecond Nd:YLF amplifier for laser-Compton x-ray generator

Yasuhiro Okada, Masafumi Yorozu, Jinfeng Yang, Katsuyuki Kobayashi, Fumio Sakai, Yasushi Aoki, Akira Endo

Proceedings Volume 4267, Solid State Lasers X; (2001) https://doi.org/10.1117/12.424608
Event: Photonics West 2001 - LASE, 2001, San Jose, CA, United States

Abstract

A multipass amplifier for a picosecond Nd:YLF laser was designed and developed for the light source of a laser-Compton X-ray generator. The developed amplifier was constructed of a water-cooled Nd:YLF rod (20mm long, 4mm in diameter) and a pair of quasi-CW laser diodes (peak power 1kW) with optical systems for rod pumping. The amplifier was operated as a laser with a generated output energy of 218mJ and slope efficiency of 31% at 10Hz. We then operated the laser as an amplifier with 0.4mJ, at 10ps, 1047nm seed light. The amplified energy was 4mJ in the single-pass configuration and 3OmJ in the double-pass configuration. The experiment result was compared with the theoretical result derived from the Frantz-Nodvik equation. The results agreed well in the lower energy region but diverged in the higher energy region.

Citation Download Citation

Yasuhiro Okada, Masafumi Yorozu, Jinfeng Yang, Katsuyuki Kobayashi, Fumio Sakai, Yasushi Aoki, and Akira Endo "Development of a picosecond Nd:YLF amplifier for laser-Compton x-ray generator", Proc. SPIE 4267, Solid State Lasers X, (16 April 2001); https://doi.org/10.1117/12.424608

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